煤层气开发技术现状及发展趋势_张华珍

DOIfinjectionwellsforabsorptionofwater.Basedontheconditionsofoffshoreoilfielddevelopment,thepaperstudiesaseriesofproblemsofoffshorelow-permeabilityoilreservoirdevelopment,suchasextremeinjection-productionwellpattern,horizontalsweepefficiencyandverticalproducingdegree,andinjection-productionbalance.Italsomakesanalysisofthreebasiccontradictionsfacingoffshorelow-permeabilityoilfielddevelopment---thecontradictionbetween“usinglesswellsfordevelopment”and“effectiveinjectionandproduction”,thecontradictionbetween“high-efficiencyproduction”and“lowsweepefficiency”andthecontradictionbetween“high-efficiencydevelopment”and“injection-productionimbalance”.Themaincontrollingfactorsofthosecontradictionscanbeattributedtoafewdevelopmentwellsofoffshoreoilfieldsbecauseoftheoffshoreenvironmentandhighproductioncost.Withthestudyoftheorientationtomaketechnologicalbreakthrough,thepaperpointsoutthattheeffortsshouldbefocusedonimprovementofsingle-wellproductionandreductionofallocationinsingle-wellengineeringinvestmentwhileexploringanewpatternforeffectivedevelopmentintheareasofwelltype,wellpatternandinjection-productionstyle.Keywords:offshore,low-permeabilityoilfields,developmentcontradiction,controllingfactorsDOI:10.3969/j.issn.1002-302x.2013.05.003PresentConditionsandDevelopmentTrendofCBMTechnologyZhangHuazhen1,WangLipeng2,LiuJia1(1.CNPCEconomics&TechnologyResearchInstitute;2.ChinaUniversityofPetroleum(Beijing))Abstract:BasedonthestudyofCBMdevelopmenttechnologicaldata,thisarticlemakesbriefingsaboutthepresentconditionsofCBMdevelopmenttechnology,suchasdrilling,fracturing,extractionofgasandEOR.Focusingonthetechnologicalcharacteristicsandapplicationresults,thearticlealsoanalyzestheapplicationpotentialanddevelopmentorientationofCBMdevelopmenttechnology.InthelightofChina’sCBMgeologicalconditions,itproposestointroduceanddevelopmulti-lateralhorizontalwelltechnologyandcoiltubingfracturingtechnologyandfurtherperfectthesupportingtechnology,suchasdrillingfluid,fracturingfluidandcompletionfluid.Keywords:CBM,development,drilling,fracturing,drainageandgasproduction,recoveryfactor,CO2-ECBM,developmenttrendDOI:10.3969/j.issn.1002-302x.2013.05.004ComprehensiveAssessmentofPetroleumEngineeringandTechnologicalCompetitivenessWangminsheng1,QuYaoming2(1.SinopecResearchInstituteofPetroleumEngineering;2.SinopecPetroleumEngineeringandTechnologicalServiceCo.,Ltd.)Abstract:Petroleumengineeringtechnologicalcompetitivenessdependsonthequantityandqualityoftechnologicalresourcesaswellasthecapabilityofaservicecompanytodirectionallyrestructureitsresources.Theindexsystemofappraisingpetroleumengineeringtechnologicalcompetitivenesswasdesignedonthebasisoftwomainelements---technologicalresourceandcompetitioncompetence.Thesystemincludes18indexesinfiveareas,suchastheabilityoftechnologicalresource,theabilityofresearchanddevelopment,theconversionabilityoftechnologicalresults,theorganizationalabilityofcompetition,andtheprofit-makingability.Theindexsystemofassessmentwasusedtoestablishtheassessmentmodelonthebasisofleveledanalysisandambiguouscomprehensiveassessmentmethodinordertomakegeneralquantitativeanalysisandcomparison.Thismethodcanobjectivelyappraiseandidentifythepetroleumengineeringtechnologicalcompetitivenessofoilfieldservicecompaniessothattheycanmakeanalysisoftheproblemsandformulatetherelatedpolicies.Keywords:oilfieldservicecompany,petroleumengineeringtechnology,competitiveness,leveledanalysis,ambiguousassessmentDOI:10.3969/j.issn.1002-302x.2013.05.005EstablishScientificResearchPlatformtoUpgradeResearchWorkofInstituteChenJunbin,HanJiyong(PetroleumEngineeringInstituteofXi’anPetroleumUniversity)Abstract:Thisarticlefocusesontheprinciplesforscientificresearchworkinthehigh-educationinstitutions,thecapabilityfortechnologicalcreation,developmentofresearchpersonnelandtherelativepoliciesandmeasures.ItbriefsaboutthescientificresearchworkandachievementsmadeinPetroleum